CN214844005U

CN214844005U - Cab turnover simulation testing machine

Info

Publication number: CN214844005U
Application number: CN202120753396.2U
Authority: CN
Inventors: 桂千富; 桂鹏程
Original assignee: Hubei Yulu Electronic Technology Co ltd
Current assignee: Hubei Yulu Electronic Technology Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-23
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to a frame fatigue simulation test technical field specifically is a driver's cabin upset emulation testing machine. The cab turnover simulation testing machine comprises a bearing platform and a cab bearing frame; a detachable front suspension assembly and a detachable rear suspension assembly are sequentially arranged on the bearing table; one side of the cab bearing frame is rotatably connected with the front suspension assembly, and the other side of the cab bearing frame is provided with an upper bearing part; and the rear suspension assembly is provided with a lower bearing part matched with the upper bearing part. The utility model has the advantages that: the cab turnover simulation testing machine is characterized in that a cab bearing frame bears a cab, the whole cab bearing frame can be driven to drive the cab to turn under the pushing of a jacking mechanism, and therefore the situation that the cab needs to be turned over for maintenance in the daily use process is simulated; the driver's cab is simulated to overturn in a reciprocating mode, so that whether the front suspension and the rear suspension are in a normal working state or not can be reflected, and the durability of the front suspension and the rear suspension can be detected.

Description

Cab turnover simulation testing machine

Technical Field

The utility model relates to a frame fatigue simulation test technical field specifically is a driver's cabin upset emulation testing machine.

Background

The important components of the truck body and the special automobile body in the cab are places where professional drivers work day and night. The structure of the device is directly related to the safety, the working efficiency and the health of a driver. The cab is generally of a metal thin shell structure, is flexibly connected with the frame, does not bear load, and belongs to a non-bearing type vehicle body. Suspensions are automotive powertrain components used to reduce and control the transmission of engine vibrations and to provide support, and are currently used in the automotive industry. The ride comfort and the riding comfort of the automobile are always the key points of attention of people, in the industry of trucks, a chassis suspension in the traditional meaning cannot meet the requirements of people, and in order to improve the comfort of the automobile, relieve the driving fatigue of a driver and buffer the impact transmitted by a road surface to protect a cab main body, higher requirements are provided for the automobile suspension.

The vehicle body suspension is supported on a vehicle frame through an elastic suspension device, and is applied to the current automobile industry, and widely used suspensions are divided into rubber suspensions, hydraulic suspensions, air suspensions and airbag suspensions. The fatigue life of each part of the front suspension and the rear suspension determines that the stress of the vehicle body suspension under different conditions is different in the driving process of the durability commercial vehicle of the whole suspension device under different road conditions.

At present, large trucks generally adopt the design of a turnover cab, and can well turn over the cab when needing to be overhauled so as to be convenient for maintenance. The in-process of overhauing the driver's cabin at ordinary times needs to be with whole driver's cabin upset, and the driver's cabin is at the in-process of upset, and the front and back is put and is hung also can receive certain load, and whether the front and back is hung and still can normally work also be difficult to test under the driver's cabin upset condition, can't guarantee that the automobile body hangs the durability in the in-service use process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, a driver's cabin upset emulation testing machine is provided and is solved the aforesaid front and back and hang the problem that can't carry out effective detection to its durability after finishing.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a cab turnover simulation testing machine comprises a bearing platform and a cab bearing frame; a detachable front suspension assembly and a detachable rear suspension assembly are sequentially arranged on the bearing table; one side of the cab bearing frame is rotatably connected with the front suspension assembly, and the other side of the cab bearing frame is provided with an upper bearing part; the rear suspension assembly is provided with a lower bearing part which is matched with the upper bearing part; the bearing table is also provided with a jacking mechanism connected with the cab bearing frame and used for driving the cab bearing frame to drive the cab to overturn.

The utility model has the advantages that:

the cab turnover simulation testing machine is characterized in that a cab bearing frame bears a cab, the whole cab bearing frame can be driven to drive the cab to turn under the pushing of a jacking mechanism, and therefore the situation that the cab needs to be turned over for maintenance in the daily use process is simulated; the driver's cab is simulated to overturn in a reciprocating mode, so that whether the front suspension and the rear suspension are in a normal working state or not can be reflected, and the durability of the front suspension and the rear suspension can be detected. The front suspension assembly and the rear suspension assembly are continuously turned over in the test process, and the durability of the whole suspension device is judged through the detected fatigue life of each part of the front suspension and the rear suspension in the test process.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, a buffering support assembly is arranged between the bearing platform and the cab bearing frame; the buffering support assembly comprises an outer sleeve and a piston rod which can be arranged in the outer sleeve in a sliding mode; the outer sleeve is also provided with an elastic supporting piece for elastically supporting the piston rod.

Further, the elastic supporting piece is a buffer spring; one end of the buffer spring is connected with a first bearing disc arranged outside the outer sleeve, and the other end of the buffer spring is connected with a second bearing disc arranged outside the piston rod.

Further, the outer wall of the outer sleeve is provided with threads, and the first bearing disc is of an annular structure matched with the threads of the outer sleeve; the first bearing disc can be adjusted along the length direction of the outer sleeve.

Further, jacking mechanism includes that two symmetries set up the jacking cylinder on the plummer, the both ends of jacking cylinder bear the frame with plummer and driver's cabin respectively and articulate mutually.

Adopt above-mentioned further scheme's beneficial effect is, bear the frame through elastic support piece to the driver's cabin and carry out the auxiliary stay, guarantee that climbing mechanism drives the in-process that the driver's cabin takes place to deflect more steady, the problem that can not appear trembling and fall or tremble and rise to the situation of car upset driver's cabin in the use is gone back to true reduction, avoids simultaneously that the stronger stress of instantaneous production damages check out test set and suspension assembly, guarantees that the upset emulation is in a normal controllable scope.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the cab of the present invention being overturned;

fig. 3 is a side view of the present invention;

fig. 4 is a schematic structural view of the front suspension assembly of the present invention;

fig. 5 is a schematic structural view of the rear suspension assembly of the present invention;

fig. 6 is a schematic view of the overall structure of the buffering support assembly of the present invention;

fig. 7 is a front view of the buffering support assembly of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. bearing platform, 2, driver's cabin carrier, 3, front suspension assembly, 3a, stiffener, 3b, front suspension bracket, 3c, front suspension upper bracket, 3d, gasbag damper, 3e, front suspension leading arm, 4, rear suspension assembly, 4a, crossbeam, 4b, rear suspension bracket, 4c, rear suspension upper bracket, 4d, rear suspension gasbag damper, 4e, rear suspension leading arm, 51, upper bearing portion, 52, lower bearing portion, 6, jacking mechanism, 7, buffer support component, 71, outer sleeve, 72, piston rod, 73, elastic support, 74, first bearing disc, 75, second bearing disc.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The utility model also provides an preferred embodiment

As shown in fig. 1, 2 and 3, a cab turnover simulation testing machine comprises a bearing platform 1 and a cab bearing frame 2; a detachable front suspension assembly 3 and a detachable rear suspension assembly 4 are sequentially arranged on the bearing table 1; one side of the cab bearing frame 2 is rotatably connected with the front suspension assembly 3, and the other side is provided with an upper bearing part 51; a lower bearing part 52 matched with the upper bearing part 51 is arranged on the rear suspension assembly 4; the bearing table 1 is also provided with a jacking mechanism 6 connected with the cab bearing frame 2 and used for driving the cab bearing frame 2 to drive the cab to turn over; jacking mechanism 6 includes that two symmetries set up the jacking cylinder on plummer 1, the both ends of jacking cylinder bear frame 2 with plummer 1 and driver's cabin respectively and articulate mutually. The cab is loaded by the cab bearing frame 2, the whole cab bearing frame 2 can be driven to drive the cab to overturn under the pushing of the jacking mechanism 6, so that the condition that the cab needs to be overturned for maintenance in the daily use process is simulated; the driver's cab is simulated to overturn in a reciprocating mode, so that whether the front suspension and the rear suspension are in a normal working state or not can be reflected, and the durability of the front suspension and the rear suspension can be detected. The front suspension assembly and the rear suspension assembly are continuously turned over in the test process, and the durability of the whole suspension device is judged through the detected fatigue life of each part of the front suspension and the rear suspension in the test process.

It should be noted that, the cab turnover simulation testing machine can be used for performing fatigue simulation on the front suspension assembly 3 and the rear suspension assembly 4, and when a set of the front suspension assembly 3 and the rear suspension assembly 4 completes fatigue detection, a new set of the front suspension assembly 3 and the rear suspension assembly 4 can be replaced, so that a relatively comprehensive detection result is ensured.

In addition, the cab turnover simulation testing machine can be used for simulating the durability of the cab by installing the automobile cab on the cab bearing frame 2, and the jacking mechanism 6 is used for driving the cab bearing frame 2 to make reciprocating jolts so as to simulate the turnover process of the automobile cab, so that the strength and the performance of the whole cab are tested.

In this embodiment, referring specifically to fig. 4 and 5, the front suspension assembly 3 and the rear suspension assembly 4 to be tested are both airbag suspensions.

The front suspension assembly 3 comprises a reinforcing rod 3a, a left front suspension and a right front suspension which are assembled by a front suspension lower bracket 3b, a front suspension upper bracket 3c, a front suspension air bag damping mechanism 3d and a front suspension guide arm 3 e; the front suspension lower bracket 3b supports a front suspension upper bracket 3c through an airbag damping mechanism 3d and is hinged with the front suspension upper bracket 3c through a front suspension guide arm 3 e; two ends of the reinforcing rod 3a are respectively connected with the two front suspension brackets 3 b; the driver's cabin is at the in-process of upset conduction atress through front overhang upper bracket 3c, and front overhang guiding arm 3e can swing along with front overhang upper bracket 3c simultaneously, and the impact force in the driver's cabin upset in-process is slowed down through front overhang gasbag damper 3d finally.

The rear suspension assembly 4 comprises a cross beam 4a, and a left rear suspension and a right rear suspension which are respectively assembled by a rear suspension lower bracket 4b, a rear suspension upper bracket 4c, a rear suspension air bag damping mechanism 4d and a rear suspension guide arm 4 e; the rear suspension upper bracket 4c is supported by the rear suspension lower bracket 4b through a rear suspension airbag damping mechanism 4d, and the rear suspension airbag damping mechanism 4d is hinged with the rear suspension lower bracket 4b through a rear suspension guide arm 4 e; the two rear suspension brackets 4b are connected by a cross member 4 a. The cab is stressed by the transmission of the rear suspension upper bracket 4c in the overturning process, meanwhile, the rear suspension guide arm 4e can swing along with the rear suspension upper bracket 4c, and finally, the impact force in the bumping process of the cab is relieved through the rear suspension air bag damping mechanism 4 d.

The front suspension assembly 3 and the rear suspension assembly 4 effectively restore the load borne by the real automobile cab in the overturning process in the operation process, so that the real use state of the suspension system is simulated, and the durability of the front suspension and the rear suspension is detected.

In this embodiment, referring to fig. 6 and 7 in particular, a buffering support assembly 7 is further disposed between the bearing platform 1 and the cab bearing frame 2; the buffer support assembly 7 comprises an outer sleeve 71 and a piston rod 72 which is slidably arranged in the outer sleeve 71; the outer sleeve 71 is further provided with an elastic support 73 for elastically supporting the piston rod 72. When the in-process of carrying out driver's cabin simulation test, bear frame 2 to carry out the auxiliary stay through elastic support piece 73 to the driver's cabin, guarantee that climbing mechanism 6 drives the in-process that the driver's cabin takes place to deflect more steady, the problem that can not appear trembling and fall or tremble and rise to the situation of car upset driver's cabin in the use is really reduced out, avoids the stronger stress damage check out test set of instantaneous production and suspension assembly simultaneously.

Wherein the elastic supporting member 73 is a buffer spring; one end of the buffer spring is connected to a first carrier plate 74 provided outside the outer sleeve 71, and the other end is connected to a second carrier plate 75 provided outside the piston rod 72. The buffer spring expands and contracts along with the movement of the piston rod 72 along the outer sleeve 71, thereby playing a certain role in buffering the overturning process of the cab. The outer wall of the outer sleeve 71 is provided with threads, and the first bearing disc 74 is an annular structure in threaded fit with the outer sleeve 71; the first bearing disc 74 can be adjusted along the length direction of the outer sleeve 71, and the tightness degree of the buffer spring can be adjusted by adjusting the position of the first bearing disc 74, so that the overturning simulation is ensured to be in a normal controllable range.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A cab turnover simulation testing machine is characterized by comprising a bearing platform (1) and a cab bearing frame (2); a detachable front suspension assembly (3) and a detachable rear suspension assembly (4) are sequentially arranged on the bearing table (1); one side of the cab bearing frame (2) is rotatably connected with the front suspension assembly (3), and the other side of the cab bearing frame is provided with an upper bearing part (51); a lower bearing part (52) matched with the upper bearing part (51) is arranged on the rear suspension assembly (4); the bearing table (1) is further provided with a jacking mechanism (6) connected with the cab bearing frame (2) and used for driving the cab bearing frame (2) to drive the cab to overturn.

2. The cab turnover simulation testing machine according to claim 1, characterized in that a buffer support assembly (7) is further arranged between the bearing platform (1) and the cab bearing frame (2); the buffer support assembly (7) comprises an outer sleeve (71) and a piston rod (72) which is slidably arranged in the outer sleeve (71); the outer sleeve (71) is also provided with an elastic supporting piece (73) for elastically supporting the piston rod (72).

3. The machine according to claim 2, characterized in that said elastic support (73) is a buffer spring; one end of the buffer spring is connected with a first bearing disc (74) arranged outside the outer sleeve (71), and the other end of the buffer spring is connected with a second bearing disc (75) arranged outside the piston rod (72).

4. The cab turnover simulation testing machine as claimed in claim 3, wherein the outer wall of the outer sleeve (71) is threaded, and the first bearing disc (74) is an annular structure in threaded fit with the outer sleeve (71); the first carrier plate (74) is adjustable along the length of the outer sleeve (71).

5. The cab turnover simulation testing machine of claim 1, wherein the jacking mechanism (6) comprises two jacking cylinders symmetrically arranged on the bearing platform (1), and two ends of each jacking cylinder are respectively hinged with the bearing platform (1) and the cab bearing frame (2).